arch/arm/mach-pxa/palmte2.c

   1 /*
   2  * Hardware definitions for Palm Tungsten|E2
   3  *
   4  * Author:
   5  *      Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
   6  *
   7  * Rewrite for mainline:
   8  *      Marek Vasut <marek.vasut@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  * (find more info at www.hackndev.com)
  15  *
  16  */
  17
  18 #include <linux/platform_device.h>
  19 #include <linux/delay.h>
  20 #include <linux/irq.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/input.h>
  23 #include <linux/pda_power.h>
  24 #include <linux/pwm_backlight.h>
  25 #include <linux/gpio.h>
  26 #include <linux/wm97xx.h>
  27 #include <linux/power_supply.h>
  28 #include <linux/usb/gpio_vbus.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/pxa25x.h>
  35 #include <mach/audio.h>
  36 #include <mach/palmte2.h>
  37 #include <mach/mmc.h>
  38 #include <mach/pxafb.h>
  39 #include <mach/irda.h>
  40 #include <mach/udc.h>
  41 #include <mach/palmasoc.h>
  42
  43 #include "generic.h"
  44 #include "devices.h"
  45
  46 /******************************************************************************
  47  * Pin configuration
  48  ******************************************************************************/
  49 static unsigned long palmte2_pin_config[] __initdata = {
  50         /* MMC */
  51         GPIO6_MMC_CLK,
  52         GPIO8_MMC_CS0,
  53         GPIO10_GPIO,    /* SD detect */
  54         GPIO55_GPIO,    /* SD power */
  55         GPIO51_GPIO,    /* SD r/o switch */
  56
  57         /* AC97 */
  58         GPIO28_AC97_BITCLK,
  59         GPIO29_AC97_SDATA_IN_0,
  60         GPIO30_AC97_SDATA_OUT,
  61         GPIO31_AC97_SYNC,
  62
  63         /* PWM */
  64         GPIO16_PWM0_OUT,
  65
  66         /* USB */
  67         GPIO15_GPIO,    /* usb detect */
  68         GPIO53_GPIO,    /* usb power */
  69
  70         /* IrDA */
  71         GPIO48_GPIO,    /* ir disable */
  72         GPIO46_FICP_RXD,
  73         GPIO47_FICP_TXD,
  74
  75         /* LCD */
  76         GPIOxx_LCD_TFT_16BPP,
  77
  78         /* GPIO KEYS */
  79         GPIO5_GPIO,     /* notes */
  80         GPIO7_GPIO,     /* tasks */
  81         GPIO11_GPIO,    /* calendar */
  82         GPIO13_GPIO,    /* contacts */
  83         GPIO14_GPIO,    /* center */
  84         GPIO19_GPIO,    /* left */
  85         GPIO20_GPIO,    /* right */
  86         GPIO21_GPIO,    /* down */
  87         GPIO22_GPIO,    /* up */
  88
  89         /* MISC */
  90         GPIO1_RST,      /* reset */
  91         GPIO4_GPIO,     /* Hotsync button */
  92         GPIO9_GPIO,     /* power detect */
  93         GPIO15_GPIO,    /* earphone detect */
  94         GPIO37_GPIO,    /* LCD power */
  95         GPIO56_GPIO,    /* Backlight power */
  96 };
  97
  98 /******************************************************************************
  99  * SD/MMC card controller
 100  ******************************************************************************/
 101 static struct pxamci_platform_data palmte2_mci_platform_data = {
 102         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 103         .gpio_card_detect       = GPIO_NR_PALMTE2_SD_DETECT_N,
 104         .gpio_card_ro           = GPIO_NR_PALMTE2_SD_READONLY,
 105         .gpio_power             = GPIO_NR_PALMTE2_SD_POWER,
 106 };
 107
 108 /******************************************************************************
 109  * GPIO keys
 110  ******************************************************************************/
 111 static struct gpio_keys_button palmte2_pxa_buttons[] = {
 112         {KEY_F1,        GPIO_NR_PALMTE2_KEY_CONTACTS,   1, "Contacts" },
 113         {KEY_F2,        GPIO_NR_PALMTE2_KEY_CALENDAR,   1, "Calendar" },
 114         {KEY_F3,        GPIO_NR_PALMTE2_KEY_TASKS,      1, "Tasks" },
 115         {KEY_F4,        GPIO_NR_PALMTE2_KEY_NOTES,      1, "Notes" },
 116         {KEY_ENTER,     GPIO_NR_PALMTE2_KEY_CENTER,     1, "Center" },
 117         {KEY_LEFT,      GPIO_NR_PALMTE2_KEY_LEFT,       1, "Left" },
 118         {KEY_RIGHT,     GPIO_NR_PALMTE2_KEY_RIGHT,      1, "Right" },
 119         {KEY_DOWN,      GPIO_NR_PALMTE2_KEY_DOWN,       1, "Down" },
 120         {KEY_UP,        GPIO_NR_PALMTE2_KEY_UP,         1, "Up" },
 121 };
 122
 123 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
 124         .buttons        = palmte2_pxa_buttons,
 125         .nbuttons       = ARRAY_SIZE(palmte2_pxa_buttons),
 126 };
 127
 128 static struct platform_device palmte2_pxa_keys = {
 129         .name   = "gpio-keys",
 130         .id     = -1,
 131         .dev    = {
 132                 .platform_data = &palmte2_pxa_keys_data,
 133         },
 134 };
 135
 136 /******************************************************************************
 137  * Backlight
 138  ******************************************************************************/
 139 static struct gpio palmte_bl_gpios[] = {
 140         { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
 141         { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
 142 };
 143
 144 static int palmte2_backlight_init(struct device *dev)
 145 {
 146         return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 147 }
 148
 149 static int palmte2_backlight_notify(struct device *dev, int brightness)
 150 {
 151         gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
 152         gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
 153         return brightness;
 154 }
 155
 156 static void palmte2_backlight_exit(struct device *dev)
 157 {
 158         gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 159 }
 160
 161 static struct platform_pwm_backlight_data palmte2_backlight_data = {
 162         .pwm_id         = 0,
 163         .max_brightness = PALMTE2_MAX_INTENSITY,
 164         .dft_brightness = PALMTE2_MAX_INTENSITY,
 165         .pwm_period_ns  = PALMTE2_PERIOD_NS,
 166         .init           = palmte2_backlight_init,
 167         .notify         = palmte2_backlight_notify,
 168         .exit           = palmte2_backlight_exit,
 169 };
 170
 171 static struct platform_device palmte2_backlight = {
 172         .name   = "pwm-backlight",
 173         .dev    = {
 174                 .parent         = &pxa25x_device_pwm0.dev,
 175                 .platform_data  = &palmte2_backlight_data,
 176         },
 177 };
 178
 179 /******************************************************************************
 180  * IrDA
 181  ******************************************************************************/
 182 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
 183         .gpio_pwdown            = GPIO_NR_PALMTE2_IR_DISABLE,
 184         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 185 };
 186
 187 /******************************************************************************
 188  * UDC
 189  ******************************************************************************/
 190 static struct gpio_vbus_mach_info palmte2_udc_info = {
 191         .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
 192         .gpio_vbus_inverted     = 1,
 193         .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
 194 };
 195
 196 static struct platform_device palmte2_gpio_vbus = {
 197         .name   = "gpio-vbus",
 198         .id     = -1,
 199         .dev    = {
 200                 .platform_data  = &palmte2_udc_info,
 201         },
 202 };
 203
 204 /******************************************************************************
 205  * Power supply
 206  ******************************************************************************/
 207 static int power_supply_init(struct device *dev)
 208 {
 209         int ret;
 210
 211         ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
 212         if (ret)
 213                 goto err1;
 214         ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
 215         if (ret)
 216                 goto err2;
 217
 218         return 0;
 219
 220 err2:
 221         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 222 err1:
 223         return ret;
 224 }
 225
 226 static int palmte2_is_ac_online(void)
 227 {
 228         return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
 229 }
 230
 231 static void power_supply_exit(struct device *dev)
 232 {
 233         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 234 }
 235
 236 static char *palmte2_supplicants[] = {
 237         "main-battery",
 238 };
 239
 240 static struct pda_power_pdata power_supply_info = {
 241         .init            = power_supply_init,
 242         .is_ac_online    = palmte2_is_ac_online,
 243         .exit            = power_supply_exit,
 244         .supplied_to     = palmte2_supplicants,
 245         .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
 246 };
 247
 248 static struct platform_device power_supply = {
 249         .name = "pda-power",
 250         .id   = -1,
 251         .dev  = {
 252                 .platform_data = &power_supply_info,
 253         },
 254 };
 255
 256 /******************************************************************************
 257  * WM97xx audio, battery
 258  ******************************************************************************/
 259 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
 260         .batt_aux       = WM97XX_AUX_ID3,
 261         .temp_aux       = WM97XX_AUX_ID2,
 262         .charge_gpio    = -1,
 263         .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
 264         .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
 265         .batt_mult      = 1000,
 266         .batt_div       = 414,
 267         .temp_mult      = 1,
 268         .temp_div       = 1,
 269         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 270         .batt_name      = "main-batt",
 271 };
 272
 273 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
 274         .batt_pdata     = &palmte2_batt_pdata,
 275 };
 276
 277 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
 278         .codec_pdata    = { &palmte2_wm97xx_pdata, },
 279 };
 280
 281 static struct palm27x_asoc_info palmte2_asoc_pdata = {
 282         .jack_gpio      = GPIO_NR_PALMTE2_EARPHONE_DETECT,
 283 };
 284
 285 static struct platform_device palmte2_asoc = {
 286         .name = "palm27x-asoc",
 287         .id   = -1,
 288         .dev  = {
 289                 .platform_data = &palmte2_asoc_pdata,
 290         },
 291 };
 292
 293 /******************************************************************************
 294  * Framebuffer
 295  ******************************************************************************/
 296 static struct pxafb_mode_info palmte2_lcd_modes[] = {
 297 {
 298         .pixclock       = 77757,
 299         .xres           = 320,
 300         .yres           = 320,
 301         .bpp            = 16,
 302
 303         .left_margin    = 28,
 304         .right_margin   = 7,
 305         .upper_margin   = 7,
 306         .lower_margin   = 5,
 307
 308         .hsync_len      = 4,
 309         .vsync_len      = 1,
 310 },
 311 };
 312
 313 static struct pxafb_mach_info palmte2_lcd_screen = {
 314         .modes          = palmte2_lcd_modes,
 315         .num_modes      = ARRAY_SIZE(palmte2_lcd_modes),
 316         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 317 };
 318
 319 /******************************************************************************
 320  * Machine init
 321  ******************************************************************************/
 322 static struct platform_device *devices[] __initdata = {
 323 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 324         &palmte2_pxa_keys,
 325 #endif
 326         &palmte2_backlight,
 327         &power_supply,
 328         &palmte2_asoc,
 329         &palmte2_gpio_vbus,
 330 };
 331
 332 /* setup udc GPIOs initial state */
 333 static void __init palmte2_udc_init(void)
 334 {
 335         if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
 336                 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
 337                 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
 338         }
 339 }
 340
 341 static void __init palmte2_init(void)
 342 {
 343         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 344
 345         pxa_set_ffuart_info(NULL);
 346         pxa_set_btuart_info(NULL);
 347         pxa_set_stuart_info(NULL);
 348
 349         pxa_set_fb_info(NULL, &palmte2_lcd_screen);
 350         pxa_set_mci_info(&palmte2_mci_platform_data);
 351         palmte2_udc_init();
 352         pxa_set_ac97_info(&palmte2_ac97_pdata);
 353         pxa_set_ficp_info(&palmte2_ficp_platform_data);
 354
 355         platform_add_devices(devices, ARRAY_SIZE(devices));
 356 }
 357
 358 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
 359         .boot_params    = 0xa0000100,
 360         .map_io         = pxa25x_map_io,
 361         .init_irq       = pxa25x_init_irq,
 362         .handle_irq     = pxa25x_handle_irq,
 363         .timer          = &pxa_timer,
 364         .init_machine   = palmte2_init
 365 MACHINE_END